observability: deploy observability stack

kubernetes/infrastructure/observability/alertmanager-config.yaml

@@ -0,0 +1,27 @@
+apiVersion: v1
+kind: Secret
+metadata:
+  name: alertmanager-config
+  namespace: observability
+  labels:
+    app.kubernetes.io/name: alertmanager
+    app.kubernetes.io/component: notifiers
+type: Opaque
+stringData:
+  alertmanager.yaml: |
+    global:
+      resolve_timeout: 5m
+
+    route:
+      receiver: default
+      group_by: ["alertname", "severity", "instance"]
+      group_wait: 30s
+      group_interval: 5m
+      repeat_interval: 4h
+
+    receivers:
+      - name: default
+        webhook_configs:
+          # n8n workflow webhook
+          - url: "http://n8n.lan/webhook/observability-alert"
+            send_resolved: true